<template>
  <div class="dashboard-container">
    <!-- 主体内容 -->
    <div class="app-container">
      <el-card>
        <el-tabs>
          <!-- 放置页签 -->
          <el-tab-pane label="角色管理">
            <!-- 新增角色按钮 -->
            <el-row style="height:60px">
              <el-button icon="el-icon-plus" size="small" type="primary" @click="showDialog = true">新增角色</el-button>
            </el-row>
            <!-- 表格 -->
            <el-table :data="roles" style="width: 100%">
              <el-table-column type="index" :index="Index" label="序号" width="120" />
              <el-table-column label="角色名称" prop="name" width="240" />
              <el-table-column label="描述" prop="description" />
              <el-table-column label="操作">
                <template v-slot="{row:{id}}">
                  <el-button size="small" type="success" @click="handleAssign(id)">分配权限</el-button>
                  <el-button size="small" type="primary">编辑</el-button>
                  <el-button size="small" type="danger" @click="hDel(row.id)">删除</el-button>
                </template>
              </el-table-column>
            </el-table>

            <el-row type="flex" justify="center" align="middle" style="height: 60px">
              <!-- 分页组件 -->
              <el-pagination :page-size="pageParams.pagesize" :current-page="pageParams.page" layout="prev,pager,next" :total="total" @current-change="hCurrentChange" />
            </el-row>
          </el-tab-pane>
        </el-tabs>
      </el-card>
    </div>
    <!-- 弹窗 -->
    <el-dialog title="编辑弹层" :close-on-click-modal="false" :close-on-press-escape="false" :visible.sync="showDialog">
      <el-form ref="roleForm" :model="roleForm" :rules="rules" label-width="100px">
        <el-form-item label="角色名称" prop="name">
          <el-input v-model="roleForm.name" />
        </el-form-item>
        <el-form-item label="角色描述">
          <el-input v-model="roleForm.description" />
        </el-form-item>
      </el-form>
      <!-- 底部 -->
      <el-row slot="footer" type="flex" justify="center">
        <el-col :span="6">
          <el-button size="small">取消</el-button>
          <el-button size="small" type="primary" @click="hSubmit">确定</el-button>
        </el-col>
      </el-row>
    </el-dialog>
    <!-- 分配权限弹框 -->
    <el-dialog title="分配权限(一级为路由页面查看权限-二级为按钮操作权限)" :visible.sync="showDialogAssign">
      <assign-permission v-if="showDialogAssign" :show.sync="showDialogAssign" :permission="permission" />
    </el-dialog>
  </div>

</template>

<script>
import { getRoles, deleteRole, addRole, getRoleDetail } from '@/api/settings'
import AssignPermission from './components/assignPermission.vue'
export default {
  components: { AssignPermission },
  data() {
    return {
      roles: [],
      showDialogAssign: false,
      pageParams: {
        page: 1, // 查询第一页
        pagesize: 2 // 每页两条  --- 要与pagination中page-size一致
      },
      total: 0, // 总的数据条数,
      // 弹框相关
      // 省略其他....
      showDialog: false,
      roleForm: {
        name: '',
        description: ''
      },
      rules: {
        name: [{ required: true, message: '角色名称不能为空', trigger: 'blur' }],
        description: [{ required: true, message: '角色描述不能为空', trigger: 'blur' }]
      },
      permission: {}

    }
  },
  computed: {
    Index() {
      return (this.pageParams.page - 1) * this.pageParams.pagesize + 1
    }
  },
  created() {
    this.loadRoles()
  },
  methods: {
    async handleAssign(id) {
      console.log(id)
      const { data } = await getRoleDetail(id)
      this.permission = data
      this.showDialogAssign = true
    },
    async doClick() {
      await addRole(this.roleForm)

      this.loadRoles()
      this.$message.success('添加成功')
      this.total++

      this.pageParams.page = Math.ceil(this.total / this.pageParams.pagesize)
      this.showDialog = false
    },
    // 提交表单
    hSubmit() {
      this.$refs.roleForm.validate((valid) => {
        if (valid) {
          this.doClick()
        }
      })
    },
    async loadRoles() {
      try {
        const res = await getRoles(this.pageParams)
        console.log(res)
        this.roles = res.data.rows
        this.total = res.data.total
      } catch (err) {
        console.log(err)
      }
    },
    // 用户点击了页码
    hCurrentChange(curPage) {
      // alert(curPage)
      // 1. 更新页码
      this.pageParams.page = curPage
      // 2. 重发请求
      this.loadRoles()
    },
    async doDel(id) {
      try {
        const res = await deleteRole(id)
        console.log(res)
        // 1. 提示
        this.$message.success('删除成功')

        // 2. 如果当前表格中只有一条，删除之后自动请求上一页数据
        if (this.roles.length === 1) {
          this.pageParams.page--
          if (this.pageParams.page <= 0) {
            this.pageParams.page = 1
          }
        }
        // 2. 重新请求
        this.loadRoles()
      } catch (err) {
        console.log(err)
        this.$message.error('删除失败')
      }
    },
    // 用户点击了删除
    hDel(id) {
      this.$confirm('此操作将永久删除该角色, 是否继续?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).then(() => {
        this.doDel(id)
      }).catch((err) => {
        console.log(err)
        this.$message({
          type: 'info',
          message: '已取消删除'
        })
      })
    }
  }
}
</script>
